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Gymnosporangium juniperi-virginianae is a plant pathogen that causes cedar-apple rust. [ 1] In virtually any location where apples or crabapples ( Malus) and eastern red cedar ( Juniperus virginiana) coexist, cedar apple rust can be a destructive or disfiguring disease on both the apples and cedars. Apples, crabapples, and eastern red cedar are ...
Binomial name. Didymascella thujina. (Durand) Maire 1927. Synonyms. Keithia thujina E.J. Durand 1913. Didymascella thujina is an ascomycete fungus in the family Helotiaceae. D. thujina causes cedar leaf blight (also known as Keithia blight or Keithia leaf blight ), a leaf disease, on western red cedar ( Thuja plicata) and white cedar ( T ...
Calocedrus decurrens is a large tree, typically reaching heights of 30–40 meters (100–130 ft) and a trunk diameter up to 1.2 m (3 ft 11 in). The largest known tree, located in Klamath National Forest, Siskiyou County, California, is 47.98 m (157 ft 5 in) tall with a 12 m (39 ft 4 in) circumference trunk and a 17.5 m (57 + 1 ⁄ 2 ft) spread. [8]
Gymnosporangium globosum is a heteroecious rust fungus that requires two hosts to complete its life cycle. Its telial stage occurs on eastern red cedar, Rocky Mountain juniper, southern red cedar, and other common junipers while its aecial stage will be found on apple, crabapple, hawthorne, and occasionally on pear, quince, and serviceberry.
Thuja occidentalis. Thuja occidentalis, also known as northern white-cedar, [ 1] eastern white-cedar, [ 2] or arborvitae, [ 2][ 3] is an evergreen coniferous tree, in the cypress family Cupressaceae, which is native to eastern Canada and much of the north-central and northeastern United States. [ 3][ 4] It is widely cultivated as an ornamental ...
Phomopsis blight of juniper. Phomopsis blight of juniper is a foliar disease discovered in 1917 [1] caused by the fungal pathogen Phomopsis juniperovora. The fungus infects new growth of juniper trees or shrubs, i.e. the seedlings or young shoots of mature trees. Infection begins with the germination of asexual conidia, borne from pycnidia, on ...
Ulmus crassifolia Nutt., the Texas cedar elm or simply cedar elm, is a deciduous tree native to south-central North America, mainly in southern and eastern Texas, southern Oklahoma, Arkansas, and Louisiana, with small populations in western Mississippi, southwest Tennessee, and north-central Florida; [2] it also occurs in northeastern Mexico.
Thuja plicata is a large evergreen coniferous tree in the family Cupressaceae, native to the Pacific Northwest of North America. Its common name is western redcedar in the U.S. [ 2] or western red cedar in the UK, [ 3] and it is also called pacific red cedar, giant arborvitae, western arborvitae, just cedar, giant cedar, or shinglewood. [ 4]